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mid-15c., from Middle French comprehénsion (15c.), from Latin comprehensionem (nominative comprehensio) "a seizing, laying hold of, arrest," figuratively "perception, comprehension," noun of action from past participle stem of comprehendere (see comprehend). In reading education, from 1921.
comprehension com·pre·hen·sion (kŏm'prĭ-hěn'shən)